In the process of mining gold, several chemicals are commonly used to extract and refine the precious metal. These chemicals serve various purposes, such as facilitating the separation of gold from other minerals, dissolving the gold particles, and purifying the extracted gold. Here are some of the chemicals commonly used in gold mining:
Cyanide: Sodium cyanide (NaCN) or potassium cyanide (KCN) is often used in gold mining to dissolve and extract gold from its ores. This process is known as cyanidation or the cyanide leaching process. Cyanide forms a complex with gold ions, allowing them to be solubilized and separated from the ore.
Mercury: Although its use has significantly decreased due to environmental concerns, mercury (Hg) has historically been used in small-scale and artisanal gold mining. It is used to form an amalgam with gold, allowing for its easy extraction. However, mercury poses serious health and environmental risks and is being phased out in many countries. German red mercury manufacturer, buy red mercury online, red mercury price, German red mercury 2020 258 N9 for sale online.
Nitric Acid: Nitric acid (HNO3) is commonly used in the process of refining gold. It is used to dissolve impurities, such as silver, copper, and other base metals, leaving behind purified gold. This process is known as aqua regia, which is a mixture of nitric acid and hydrochloric acid.
Aqua Regia: Aqua regia is a highly corrosive mixture of nitric acid and hydrochloric acid. It is used in gold refining to dissolve and separate gold from other metals or impurities. Aqua regia can dissolve gold and many other metals that are resistant to other forms of acid.
Activated Carbon: Activated carbon is used in gold mining as a means of adsorbing gold from a cyanide solution. The gold-loaded carbon is then treated to recover the gold by elution, followed by electro-winning or smelting processes.
Flocculants: Flocculants, such as polyacrylamide, are used in gold mining to aid in the settling and separation of fine particles in the ore slurry. They help to improve the efficiency of solid-liquid separation processes.
It’s important to note that the use of these chemicals in gold mining should be done following strict safety guidelines and regulations. Proper handling, storage, and disposal methods must be employed to ensure the safety of workers and minimize environmental impacts. Additionally, local regulations and best practices should be followed to mitigate any potential risks associated with these chemicals.
It is crucial to consult with experts, adhere to legal and safety requirements, and receive proper training before handling or using any chemicals in gold mining or any other industrial processes.
Dr. Andrae Uwe [Geschäftsführer und Störfallbeauftragter]